[css-scrollbars][css-scrollbars-1] standardization of scrollbar color properties

[dbaron]

Mozilla bug.

Getting an issue on file since we're discussing this face-to-face now.

[nainar]

The discussion didn't get logged here. So here is the start of the IRC log: https://logs.csswg.org/irc.w3.org/css/2017-11-07/#e908987

[dbaron]

Fixed by f20b121

[tantek]

https://drafts.csswg.org/css-scrollbars-1/